TB 9-6625-2351-35
(2) Setup measuring receiver to measure frequency. If measuring receiver does not
indicate between 299.9988 and 300.0012 MHz, perform b (1) below.
(3) Setup measuring receiver to measure RF power in dBm at 300 MHz. If
measuring receiver does not indicate between -9.7 and -10.3 dBm, perform b (2) below.
(4) Disconnect sensor module from TI.
(5) Connect TI CAL OUTPUT to INPUT 50 Ω.
(6) Press TI keys and enter values using the DATA keys as listed in (a) through (g) below:
(a) INSTRUMENT STATE PRESET.
(b) FREQUENCY then [CENTER FREQ] to 300 MHz.
(c) SPAN then [SPAN WIDTH] to 20 MHz.
(d) MARKER PEAK SEARCH.
(e) AMPLITUDE then [REF LVL] to -10 dBm.
(f) [MORE].
(g) [REF LVL CAL].
(7) Adjust TI knob until MKR indication is between -9.83 and -10.17 dBm.
(8) Press [STORE REF LVL] key.
b. Adjustments
NOTE
Allow TI 30 minutes
warm-up
before
performing
the
adjustment below.
(1) Adjust A15R306 (located on A15 board) for a measuring receiver indication
between 299.99997 and 300.00003 MHz.
(2) Adjust A15R561 (located on A15 board) for a measuring receiver indication
between -9.95 and -10.05 dBm.
a. Performance Check
(1) Connect TI CAL OUTPUT to INPUT 50 Ω.
(2) Press TI keys and enter values using the DATA keys as listed in (a) through (k) below:
(a)
INSTRUMENT STATE PRESET.
FREQUENCY then [CENTER FREQ] to 300 MHz.
(b)
(c)
SPAN then [SPAN WIDTH] to 10 kHz.
(d)
AMPLITUDE then [REF LVL] to -10 dBm.
(e)
[ATTEN] to 0 dB.
(f)
CONTROL BW then [RES BW] to 100 Hz.